January weather forecast
Warren, IL

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Weather in January

January, like December, is another subzero cold winter month in Warren, Illinois, with temperature in the range of an average low of 12°F (-11.1°C) and an average high of 24.8°F (-4°C).

Temperature

The coldest temperatures occur during January, when averages reach a peak of 24.8°F (-4°C) and a low of 12°F (-11.1°C).

Humidity

With an average relative humidity of 88%, January is the most humid month.

Rainfall

January is the month with the least rainfall. Rain falls for 4.6 days and accumulates 1.06" (27mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 12.8 days and accumulates 3.82" (97mm) of snow.

Daylight

The average length of the day in January is 9h and 29min.
On the first day of the month, sunrise is at 7:29 am and sunset at 4:37 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:11 pm CST.

Sunshine

With an average of 3.4h of sunshine, January has the least sunshine of the year in Warren.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 1 during January translates into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What part of the year is the coldest in Warren?

In Warren, the average lowest temperatures are observed in January, with a high of 24.8°F (-4°C) and a low of 12°F (-11.1°C).

How cold is January in Warren?

January temperatures vary between a high-temperature of 24.8°F (-4°C) and a low-temperature of 12°F (-11.1°C).

What is the most humid month in Warren?

The most humid month in Warren, Illinois, is January, with an average relative humidity of 88%.

What is the average humidity in January in Warren?

The average relative humidity in January in Warren is 88%.

What is the driest month in Warren?

January is the month with the least rainfall in Warren. Rain falls for 4.6 days and accumulates 1.06" (27mm) of precipitation.

How much does it rain in Warren in January?

In Warren, in January, it is raining for 4.6 days, with typically 1.06" (27mm) of accumulated precipitation.

When does it snow the most in Warren?

January is the month with the most snowfall. Snow falls for 12.8 days and accumulates 3.82" (97mm) of snow.

How many days does it snow in January in Warren?

In Warren, Illinois, during January, snow falls for 12.8 days and regularly aggregates up to 3.82" (97mm) of snow.

What is the average length of the day in January in Warren?

In Warren, the average day length in January is 9h and 29min.

What time are sunrise and sunset in January in Warren?

On the first day of January in Warren, Illinois, sunrise is at 7:29 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:11 pm CST.

What is the month with the least sunshine in Warren?

January has the least sunshine of the year in Warren, Illinois, with an average of 3.4h of sunshine.

How many hours of sunshine does Warren have in January?

The average sunshine duration in January in Warren, Illinois, is 3.4h.

When is the lowest UV index in Warren?

The months with the lowest UV index in Warren are January and December, with an average maximum UV index of 1.

How high is the UV index in January in Warren?

In Warren, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Warren, IL

Average temperature in January - Warren, IL
  • Average high temperature in January: 24.8°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).

  • Average low temperature in January: 12°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in January
Warren, IL

Average pressure in January - Warren, IL
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Warren, IL

Average wind speed in January - Warren, IL
  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

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Average humidity in January
Warren, IL

Average humidity in January - Warren, IL
  • Average humidity in January: 88%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April, October and November (77%).

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Average rainfall in January
Warren, IL

Average rainfall in January - Warren, IL
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in January
Warren, IL

Average rainfall days in January - Warren, IL
  • Average rainfall days in January: 4.6 days

The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (4.5 days).

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Average snowfall in January
Warren, IL

Average snowfall in January - Warren, IL
  • Average snowfall in January: 3.82"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Warren, IL

Average snowfall days in January - Warren, IL
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Warren, IL

Average daylight in January / Average sunshine in January - Warren, IL
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

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Average sunshine days in January
Warren, IL

Average sunshine days in January - Warren, IL
  • Average sunshine days in January: 14.5 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.1 days).

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Average UV index in January
Warren, IL

Average UV index in January - Warren, IL
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Warren, IL

Average cloud cover in January - Warren, IL
  • Average cloud cover in January: 65

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 34).

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Average visibility in January
Warren, IL

Average visibility in January - Warren, IL
  • Average visibility in January: 5mi

The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).

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Warren, Illinois, USA

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